 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.core;

 import org.eclipse.core.runtime.IAdaptable;

 /**
  * Non-plug-in entry defines an arbitrary non-plug-in data file packaged
  * as part of a feature. Non-plug-in entries are not interpreted by the
  * platform (other than being downloaded as part of an install action).
  * They require a custom install handler to be specified as part of the
  * feature. Note, that defining a non-plug-in entry does not necessarily
  * indicate the non-plug-in file is packaged together with any other
  * feature files. The actual packaging details are determined by the
  * feature content provider for the feature.
  * <p>
  * Clients may implement this interface. However, in most cases clients should
  * directly instantiate or subclass the provided implementation of this
  * interface.
  * </p>
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @see org.eclipse.update.core.NonPluginEntry
  * @see org.eclipse.update.core.FeatureContentProvider
  * @since 2.0
  */
 public interface INonPluginEntry extends IPlatformEnvironment, IAdaptable {

     /**
      * Returns the identifier of this data entry.
      *
      * @return data entry identifier
      * @since 2.0
      */
     public String getIdentifier();

     /**
      * Returns the download size of the entry, if it can be determined.
      *
      * @see org.eclipse.update.core.model.ContentEntryModel#UNKNOWN_SIZE
      * @return download size of the feature in KiloBytes, or an indication
      * the size could not be determined
      * @since 2.0
      */
     public long getDownloadSize();

     /**
      * Returns the install size of the feature, if it can be determined.
      *
      * @see org.eclipse.update.core.model.ContentEntryModel#UNKNOWN_SIZE
      * @return install size of the feature in KiloBytes, or an indication
      * the size could not be determined
      * @since 2.0
      */
     public long getInstallSize();
 }

